3 of the Best Email Warm-Up Software

Nobody likes spam. On both sides of the fence, too; people don’t like receiving spam, and marketers don’t like their emails going to spam.

For marketers, every email that goes to spam is time and money wasted, and the goal is to make contact with as many people as possible. If they can’t do that, they could be missing out on leads and, consequently, money.

Luckily, there are a few ways to prevent your emails from going to spam, one of which we’ll be discussing here is email warm-up software.

First things first…

What is email warm-up software?

Email warm-up software is a standalone software or a part of an email automation software that helps you gradually boost your email address’s reputation, thus increasing your daily email sending limit over time.

If you don’t use email warm-up software, you’ll be heavily restricted on how many cold emails you can send every day. For platforms like Google Workspace, it could be as high as 2,000 per day, and with platforms like Zoho and Outlook, it could be as low as 300 – 500 per day.

There are two ways you can warm up your email account: one with software, and one without.

Without software, A.K.A. manually, you can warm up your account by exchanging emails with your contacts to build a conversation. To do this, make sure those initial emails have consistent engagement, which will help you increase the volume of emails you can send in the future.

With software, A.K.A. automatically, an email warm-up software will send emails from your email account to other inboxes on their network to quickly boost your daily email limit and improve your domain’s reputation. All of this is done on autopilot and doesn’t require any extra input past starting the process up.

What is the best email warm-up software?

Here is our shortlist of the best email warm-up software:

  • Warmbox best overall
  • TrulyInbox best for free
  • Mailwarmbest for simplicity
Best Overall

Warmbox

Warmbox holds the distinction of having the best UI and UX among all of its competitors and provides great email warm-up services at a mid-range price point.

Additionally, Warmbox uses AI to generate the most realistic responses to emails it sends from your account, ensuring that your sending limit goes up in the long run.

Warmbox holds the distinction of having the best UI and UX among all of its competitors and provides great email warm-up services at a mid-range price point.

Additionally, Warmbox uses AI to generate the most realistic responses to emails it sends from your account, ensuring that your sending limit goes up in the long run.

Features:

Email Warm-Up (using AI)

Utilizing GPT-3, Warmbox creates human-realistic emails that reply to emails sent from your account by Warmbox to create the most natural progression of inbox warming possible. On top of replying, they will also auto-remove your emails from spam if they’re placed there and mark them as favorites, adding to the positive interaction your emails are getting.

Warmbox uses over 35,000 private inboxes from over 100 countries, aged between two weeks and 15 years, to send emails to and from your account and warm it up at whatever pace you choose. Speaking of which, you can choose from 4 different warm-up recipes based on your goals, which change the length o the warm-up, emails per day, and reply rate.

You can also add multiple inboxes and warm them in separate ways using separate schedules, so if you want to test a warming strategy, you have all of the tools necessary to do so.

IP/Domain Blacklist & DNS Checker

Based on over 120 checkpoints, you can audit your IP & domain blacklist status and inspect your domain settings (e.g. SPF, DKIM, & DMARC) to verify if your emails are authenticated and protected from spoofing and phishing.

This would usually require a separate service, but Warmbox makes it easy to improve email deliverability from one platform.

Integrations

Not only does Warmbox work with mailbox providers like Gmail, Outlook, Yahoo, and more, but they also integrate with lesser-known inbox options like Sendinblue (now Brevo), SendGrid, Mailgun, and more.

Pricing: Warmbox’s pricing starts at $19/mo for one inbox, 50 emails per day, one team member, and premium support. From there, their plans scale up based on how many inboxes you want to be warmed up and how many emails you want to send per day, up to the enterprise level.

Best for Free

TrulyInbox

TrulyInbox is a completely free email warm-up tool that allows you to warm up unlimited email accounts on autopilot.

As a partner of Saleshandy, they operate in tandem with Saleshandy’s cold email software. With the two platforms together, you can scale up your email marketing/lead generation significantly while automating any interaction you get from your cold emails.

TrulyInbox is a completely free email warm-up tool that allows you to warm up unlimited email accounts on autopilot.

As a partner of Saleshandy, they operate in tandem with Saleshandy’s cold email software. With the two platforms together, you can scale up your email marketing/lead generation significantly while automating any interaction you get from your cold emails.

Additionally, TrulyInbox works with all major email providers, from Gmail to Outlook to anything else.

Features:

Unlimited Email Warm-Up

TrulyInbox’s email warm-up sends emails like a real human, one at a time and at varying intervals for natural interaction with your inbox for a high sender’s reputation.

You can also tweak how fast you want this email warm0-up to happen, but it’s recommended not to go too quickly as that could set off some red flags in the eyes of ESPs.

Analytics

Once you’ve got your email warm-up started, you can keep track of analytics like deliverability, total emails sent, how many made it to an inbox, and spam.

From all of the data TrulyInbox gathers from the emails it sends from your account to its servers, TrulyInbox creates a deliverability score for you to monitor and watch grow as more and more emails are bounced back and forth.

On top of that, you can get an estimate of your domain’s reputation and where it is projected to go, either up or down.

Provider Support

As mentioned above, TrulyInbox works with all major email providers, including the ones listed below:

  • Gmail
  • Outlook
  • Zoho
  • Yahoo! Mail
  • iCloud Mail
  • AOL Mail
  • ProtonMail

Pricing: As said above, TrulyInbox is completely free and offers no paid plans.

Best Overall

Mailwarm

Not to be confused with MailWarm.io, Mailwarm is the quintessential email warm-up software and does exactly what its name suggests: warm your email accounts, improve deliverability, and avoid spam filters.

Using over 1,000 email accounts, Mailwarm positively interacts with your domain and emails sent from it according to a schedule to boost your domain’s reputation and increase your daily email limit.

Not to be confused with MailWarm.io, Mailwarm is the quintessential email warm-up software and does exactly what its name suggests: warm your email accounts, improve deliverability, and avoid spam filters.

Using over 1,000 email accounts, Mailwarm positively interacts with your domain and emails sent from it according to a schedule to boost your domain’s reputation and increase your daily email limit.

Features:

Email Warm-Up

As mentioned above, Mailwarm warms up your email account through a network of over 1,000 email accounts that interact with emails sent automatically from your account to them.

This means they will positively interact with your emails by opening, responding to, and marking them as favorites, effectively telling your mailbox provider that your emails are getting engagement and aren’t spam.

Of course, if every email you send gets this attention, it might appear like you’re using an email warming service, and your mailbox provider might flag your account. To get around this, you can adjust the ratio of replies you get to the emails Mailwarm sends from your account, which they recommend setting around 30%.

Additionally, as you’ll be receiving a lot of replies from Mailwarm’s email network, you might think your inbox might get cluttered. However, Mailwarm has thought of a way around this and includes a specific word in their replies that you can use to filter them into a folder and avoid your inbox being filled with Mailwarm’s replies.

Email Deliverability

As a consequence of using Mailwarm on a daily basis, your cold email activity will be balanced out by the emails Mailwarm is sending to and from your account and will keep your email deliverability consistently high.

Email deliverability is so important because every email that doesn’t make it to the recipient’s inbox is time or money wasted, and while this is less vital for cold emails or marketing emails, for things like transactional emails, high email deliverability is crucial.

Dashboard

Here, you can control and monitor all aspects of your email warm-up strategy.

You can keep an eye on the email activity caused by Mailwarm, both sending and receiving emails that boost your deliverability. Additionally, you can adjust the intensity of your Mailwarm activity or even just press pause, whenever you want to.

Pricing: Mailwarm’s pricing starts at $79/mo for up to 50 Mailwarm emails per day, one account to warm, one seat, a dashboard, and chat support.